CA2922459C - Bits for widening open end portions of tubes and methods of manufacture and use thereof - Google Patents

Bits for widening open end portions of tubes and methods of manufacture and use thereof Download PDF

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Publication number
CA2922459C
CA2922459C CA2922459A CA2922459A CA2922459C CA 2922459 C CA2922459 C CA 2922459C CA 2922459 A CA2922459 A CA 2922459A CA 2922459 A CA2922459 A CA 2922459A CA 2922459 C CA2922459 C CA 2922459C
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CA
Canada
Prior art keywords
flanging
tip
open end
tubes
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CA2922459A
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French (fr)
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CA2922459A1 (en
Inventor
Bruno Muller Dos Anjos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diversitech Corp
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Diversitech Corp
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Filing date
Publication date
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Application filed by Diversitech Corp filed Critical Diversitech Corp
Priority to CA3197240A priority Critical patent/CA3197240A1/en
Publication of CA2922459A1 publication Critical patent/CA2922459A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00Application of procedures in order to alter the diameter of tube ends
    • B21D41/02Enlarging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00Flanging or other edge treatment, e.g. of tubes
    • B21D19/08Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08Tube expanders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00Application of procedures in order to alter the diameter of tube ends
    • B21D41/02Enlarging
    • B21D41/021Enlarging by means of tube-flaring hand tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Automatic Assembly (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Forging (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Physical Vapour Deposition (AREA)
  • Packaging Of Special Articles (AREA)
  • Drilling And Boring (AREA)
  • Electric Vacuum Cleaner (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Connection Of Plates (AREA)

Abstract

This disclosure enables various bits for widening open end portions of tubes and methods of manufacture and use thereof. Some implementations of such bits include a bit with a cylindrical shape and a tip extending from the cylindrical shape. Therefore, the bit can be used by (a) inserting the cylindrical shape into an electric drill, (b) securing the cylindrical shape in the electric drill, (c) inserting the tip into an open end portion of a tube (e.g., copper, aluminum), and (d) rotationally driving the cylindrical shape by the electric drill such that the open end portion is heated by friction via the tip being rotationally driven against the open end portion by the cylindrical shape thereby urging the open end portion to widen.

Description

BITS FOR WIDENING OPEN END PORTIONS OF TUBES AND METHODS
OF MANUFACTURE AND USE THEREOF
The present invention refers to a metal insert that must be coupled to a rotary drive mechanism, for flanging/widening the ends of metal tubes. The insert drive can be made by using "drills" or "screwdrivers" and, as a final result, it is capable of making flanges in specially applied metal tubes, and "split" type air conditioning system connections, refrigeration systems connections and liquefied petroleum gas transport systems connections and similar, being faster than the current state of the art, due to the heating generated by the rotation of the insert inside the metal tube.
Therefore, the insert is intended to form:
1) a flange opening at the tube ends at an angle of 45 , or;
2) widening of the metal tube for coupling with a tube of the same gauge, or
3) widening with the flange opening, for coupling of another metal tube of the same diameter.
The industrial sectors, notably the industry and commerce of refrigeration, demand equipment that simplifies, optimizes and reduces production and labor time. As an example, the need for widening and shaping flange in metal tubes of heat exchangers, such as copper tubes and aluminum tubes, for the manufacture of condensing and evaporation units, in home applications, commercial and industrial lines can be highlighted.
The present patent application is directly related to patent PI0902047-0 A2, which clearly denotes the characteristics of the connection where flanged tubes are applied.
However, it differs in that it refers to the method of obtaining the shape of the flanged tube or, as denoted in patent PI0902047-0 A2 cited above, "angled tube."
Currently, there are several mechanisms of obtaining a flanged tube. However, they are differentials of the object of the present invention:
1) the operating tool design;
2) application mode, which can be performed using a "drill" or "screwdriver";
Date Recue/Date Received 2022-06-30
4 3) ability to make, with the same insert, multiple flanges in tubes of different gauges, due to the different diameters in a single insert;
4) it does not require a tailstock system, "mordant," to fix the metal pipe to be flanged;
5) the hot formation of the flange, in order to avoid the hardening of the flanged material and;
6) the characteristic of the final flange obtained, with its homogeneous and resistant microstructure, due to its formation through a heated medium.
Initially, referring to the current state of the art, there are two models of flanging tools present on the market, called a) "conventional flanging tool" and b) "eccentric flanging tool":
a) The conventional flanging tools (Fig. 1) are characterized by having a "mordant" for fixing the tubes (1) and a flanging mechanism, the latter, in turn, comprising a body for fixing the "mordant" (2), a threaded spindle (3), which is coupled to the body, a 45-degree conical tip (4) coupled to one end of the spindle and a drive crank (5) at the other end of the spindle. This system is characterized by the concentric alignment (Fig. 2), between the spindle shaft (6) and the conical tip shaft (7). During the flange execution, the contact zone between the tip and the tube is set through the entire surface of the cone.
b) The eccentric flanging tools (Fig. 3) are characterized by having a "mordant"
for fixing the tubes (8) and a flanging mechanism, the latter, in turn, comprising a body for fixing the "mordant" (9), a threaded spindle (10), which is coupled to the body, a 45-degree conical tip (11) coupled to one end of the spindle and a drive crank (12) at the other end of the spindle. This system is characterized by the eccentric misalignment (Fig.4) between the spindle shaft (13) and the conical tip shaft (14). During the flange execution, the contact zone between the tip and the tube is set through a linear contact of the cone.
Although both promote the final shape of the flange, the current state of the art requires the use of a "mordant" (tailstock) for shaping the flange. The coupling of the tube to the "mordant" and the flange execution takes a long time to execute because, in Date recue / Date received 2021-12-16 the case of split type air conditioning applications, it is necessary, for example, to make a total of four flanges per equipment. That is, two flanges per tube, these tubes being necessarily of two different gauges. In addition, due to their conception, both make the cold tube conformation, hardening the flanged material, incurring the risk of cracks in the .. flange wall.
Referring now to the rotating Insert for flanging and widening of metal tubes, called drill for flanging, it allows the execution of the widening and/or flanging of metal tubes through a system of interchangeable inserts. These inserts can be coupled to drills (whether with a chuck or pneumatic coupling) or even to electric screwdrivers.
Insert (Fig. 5) can be subdivided into the following parts:
a) A cylindrical body (15), for coupling with a drill or a screwdriver, through chuck.
b) A flanging tip (16), to properly fit in the metal tube (Fig.6) and give to its tip (17) a flanged (18) metal tube shape (Fig. 7) at an angle of approximately 45 .
The flanging tip (Fig. 8) can contain one stage (19) or (Fig. 9) more stages (20) to make the flange in one or more tubes without the need to change the insert for another one of different size and gauge. For instance, the same tip can have a diameter of 6.35mm at the end close to its tip and 12.05mm at the end closest to the cylindrical body.
In addition, it (Fig. 10) has a slim shape (21) and rounded corners (22), reducing only two points the contact with the metal tube, thus reducing friction and the amount of burrs.
Therefore, the invention differs from the current state of the art in several aspects.
First, because the insert does not need a tailstock ("mordant") system to perform the flange in the metal tube. Since the strength required to hold the pipe in the working position is low, the user himself can maintain the positioning of the flanged pipe by hands.
Second, as it works through a high rotation system, it is present friction and heating generation in the pipe, facilitating the hot shaping of the flange, without hardening in the region of the tube flange. The absence of hardening in the flange region avoids cracking problems during the tightening of the connection, a problem that is recurrent in the current state of the art. Third, the invention allows the presence of one or more gauges within the same insert, with different diameters, reducing the time of flanges execution, Date recue / Date received 2021-12-16 especially in the installation of split type air conditioners, being able of flanging different tube sizes using only one single insert.
The main objective of the insert in question is, therefore, to optimize the working time, due to its speed and ease of operation and to bring a higher quality result, considering the heating of the tube when flanged with the insert and its best microstructural result with greater strength.
Regarding the applicability of the product, the present invention aims to optimize the process and time of a flange in metal tubes for split type air conditioning systems, but it is not restricted to them. It can also be applied in flange type connections, in tubes for refrigeration applications or even in tube connections for systems that use liquefied petroleum gas.
Date recue / Date received 2021-12-16

Claims (5)

1. A method for flanging or widening an end of a metal tube, the method comprising:
(i) coupling a cylindrical body (15) of an insert to a chuck of a drill or an electric screwdriver, wherein the insert comprises a flanging tip (16) with a stage (19), wherein the flanging tip (16) has a thin flat shape (21) and a plurality of rounded corners (22);
(ii) activating the drill or the electric screwdriver to spin the insert via the cylindrical body;
and (iii) inserting the flanging tip that is spinning into the end of the metal tube so as to heat the end of the metal tube via friction generated between the flanging tip that is spinning and the end of the metal tube and thereby flange or widen the end of the metal tube via the flanging tip.
2. The method according to claim 1, wherein the flanging tip (16) comprises a plurality of stages (20) of different flanging diameters.
3. The method according to claim 1, wherein the stage (19) is only one stage (19) on the flanging tip (16).
4. The method according to any one of claims 1 to 3, wherein the metal tube is a copper tube.
5. The method according to any one of claims 1 to 3, wherein the metal tube is an aluminium tube.
Date Regue/Date Received 2022-06-30
CA2922459A 2013-09-30 2013-09-30 Bits for widening open end portions of tubes and methods of manufacture and use thereof Active CA2922459C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA3197240A CA3197240A1 (en) 2013-09-30 2013-09-30 Bits for widening open end portions of tubes and methods of manufacture and use thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2013/000379 WO2015042674A1 (en) 2013-09-30 2013-09-30 Rotating insert for flanging and widening metal tubes, "a flanging bit"

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA3197240A Division CA3197240A1 (en) 2013-09-30 2013-09-30 Bits for widening open end portions of tubes and methods of manufacture and use thereof

Publications (2)

Publication Number Publication Date
CA2922459A1 CA2922459A1 (en) 2015-04-02
CA2922459C true CA2922459C (en) 2023-06-20

Family

ID=52741656

Family Applications (2)

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CA3197240A Pending CA3197240A1 (en) 2013-09-30 2013-09-30 Bits for widening open end portions of tubes and methods of manufacture and use thereof
CA2922459A Active CA2922459C (en) 2013-09-30 2013-09-30 Bits for widening open end portions of tubes and methods of manufacture and use thereof

Family Applications Before (1)

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CA3197240A Pending CA3197240A1 (en) 2013-09-30 2013-09-30 Bits for widening open end portions of tubes and methods of manufacture and use thereof

Country Status (14)

Country Link
US (3) US20180015528A1 (en)
EP (2) EP4091736A1 (en)
JP (1) JP6559141B2 (en)
KR (1) KR102051301B1 (en)
CN (2) CN112317628A (en)
AU (1) AU2013401876B2 (en)
BR (1) BR112014008435B1 (en)
CA (2) CA3197240A1 (en)
CL (1) CL2016000319A1 (en)
ES (1) ES2924237T3 (en)
MX (1) MX2016003811A (en)
MY (1) MY173086A (en)
RU (1) RU2657253C2 (en)
WO (1) WO2015042674A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6559141B2 (en) 2013-09-30 2019-08-14 アンジョス, ブルーノ ミュラー ドスANJOS, Bruno Mueller dos Rotating insert “flange part” to widen and widen metal pipes
KR102156612B1 (en) 2015-09-03 2020-09-16 닛폰세이테츠 가부시키가이샤 Hole-widening machining method, molding tool, molding and machining method
US11433463B2 (en) 2020-05-07 2022-09-06 Mueller Industries, Inc. Prep bit
US20230372993A1 (en) * 2020-10-13 2023-11-23 Diversitech Corporation Bits and methods of manufacture and use thereof

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB560324A (en) 1942-09-23 1944-03-30 York Raising & Dyeing Company Improvements connected with flaring or "belling" the ends of metal pipes and tubes
FR1028057A (en) 1950-09-28 1953-05-19 Thomas Et Bordenave P Device for shaping pipes
US2924263A (en) * 1958-12-24 1960-02-09 Kearney James R Corp Adjustable tube flaring machine and double-pivoted support therefor
US3466707A (en) * 1966-11-07 1969-09-16 Petro Tex Chem Corp Flaring tool
JPS5153236Y2 (en) * 1972-05-15 1976-12-20
FR2209648A1 (en) * 1972-12-08 1974-07-05 Roubin Pierre Cold expander tool for plastic pipes - forms sleeveless joints which are rigid and leak proof
SU732053A1 (en) * 1977-10-25 1980-05-05 Предприятие П/Я А-7832 Pipe expanding tool
SU871895A1 (en) * 1980-03-04 1981-10-15 Тульский Ордена Трудового Красного Знамени Политехнический Институт Tool for flanging tube ends
BR8606077A (en) * 1986-11-24 1988-06-28 Confab Ind S A PROCESS FOR FORMING A POCKET IN ONE END OF A TUBE, APPARATUS FOR CARRYING OUT THE PROCESS AND TUBE
CN88202098U (en) * 1988-03-19 1988-11-30 武汉市武汉五金工具厂 Combined pipe riveting and cutting device
JP2503929Y2 (en) * 1990-03-15 1996-07-03 レッキス工業株式会社 Flare Tool Tube Holder
JPH0732938B2 (en) * 1990-06-05 1995-04-12 日高精機株式会社 Fin for heat exchanger and manufacturing method thereof
CA2070857C (en) * 1991-07-23 2003-12-02 Michel Gautheron Post molding wedge forming process for pivot joint internal bushing ends, and applications
JP3065151B2 (en) * 1991-12-16 2000-07-12 株式会社日立製作所 Standard naming system
CN2133380Y (en) * 1992-10-04 1993-05-19 郭湘泗 Thin pipe developing unit
US5374111A (en) * 1993-04-26 1994-12-20 Kennametal Inc. Extraction undercut for flanged bits
US5983496A (en) * 1996-03-15 1999-11-16 J.A. Hermanson Circular and oval flanged rings for connecting ducting and method of making
RU2122912C1 (en) * 1997-08-13 1998-12-10 Комсомольское-на-Амуре авиационное производственное объединение Tube end expanding method
JP3549750B2 (en) * 1997-12-15 2004-08-04 株式会社ベステックスキョーエイ Forming method of high expansion pipe and high expansion pipe
JP2000197935A (en) * 1998-10-28 2000-07-18 Shinwa Sangyo Co Ltd Pipe expander
TW428499U (en) * 1999-05-28 2001-04-01 Elanmax Co Ltd Multi-function hydraulic shaping machine for metal conduits
JP2005324208A (en) * 2004-05-12 2005-11-24 Matsushita Electric Works Ltd Electric flaring tool
CN2794679Y (en) * 2005-05-31 2006-07-12 王德胜 Ratchet type eccentric ditator
JP2007061837A (en) * 2005-08-30 2007-03-15 Yoshinori Shirakawa Attachment for flare-forming tools and method for forming flare
US20080006074A1 (en) * 2006-07-06 2008-01-10 Gaydusek Gerard L Bead lining tool
CN200970605Y (en) * 2006-10-27 2007-11-07 陈重道 Multifunction circle making device
US7650772B2 (en) 2007-03-26 2010-01-26 Minor Rodger D Rotary flaring tool and method of use
US7578161B1 (en) * 2008-07-18 2009-08-25 Sizemore Marion M Pneumaticaly driven pipe swedging and flaring tools
BRPI0902047A2 (en) 2009-06-10 2011-02-22 Tecumseh Do Brasil Ltda threaded connections between hermetic compressors and refrigeration systems
PT2420333E (en) * 2010-08-16 2015-03-02 Uponor Innovation Ab Tool and method for expanding a pipe end
CN201895046U (en) * 2010-11-23 2011-07-13 浙江吉利汽车有限公司 Metal pipe end opening diameter expansion tool
US9044804B2 (en) * 2012-06-11 2015-06-02 Harry P. Rieger Corrugated tubing compression tool
CN202667470U (en) * 2012-07-03 2013-01-16 潍坊恒安散热器集团有限公司 Broaching mould
JP6559141B2 (en) 2013-09-30 2019-08-14 アンジョス, ブルーノ ミュラー ドスANJOS, Bruno Mueller dos Rotating insert “flange part” to widen and widen metal pipes
JP7032938B2 (en) 2018-01-17 2022-03-09 株式会社三共 Slot machine

Also Published As

Publication number Publication date
RU2016116438A (en) 2017-11-10
CN105555433A (en) 2016-05-04
MX2016003811A (en) 2016-08-01
ES2924237T3 (en) 2022-10-05
BR112014008435B1 (en) 2020-12-01
EP3053667A4 (en) 2017-09-06
US20160074925A1 (en) 2016-03-17
WO2015042674A1 (en) 2015-04-02
BR112014008435A2 (en) 2017-04-25
JP6559141B2 (en) 2019-08-14
KR102051301B1 (en) 2019-12-03
CL2016000319A1 (en) 2016-09-30
KR20160065152A (en) 2016-06-08
RU2657253C2 (en) 2018-06-09
CA2922459A1 (en) 2015-04-02
CN112317628A (en) 2021-02-05
JP2016533273A (en) 2016-10-27
EP3053667A1 (en) 2016-08-10
MY173086A (en) 2019-12-25
US20180015528A1 (en) 2018-01-18
CA3197240A1 (en) 2015-04-02
AU2013401876A1 (en) 2016-05-05
EP3053667B1 (en) 2022-07-06
US9550223B2 (en) 2017-01-24
AU2013401876B2 (en) 2018-11-01
USRE49842E1 (en) 2024-02-20
EP4091736A1 (en) 2022-11-23

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